* {
    margin: 0;
    padding: 0;
}

.out {
    width: 800px;
    height: 500px;
    /* background-color: red; */
    margin: 100px auto;
    outline: none;
}

.in {
    width: 798px;
    height: 138px;
    border: 1px solid #ccc;
}

.count {
    margin: 0 auto;
    border: none;
    width: 100%;
    height: 100%;
    font-size: 80px;
    text-align: right;
}

table {
    border: 1px solid #ccc;
    border-collapse: collapse;
}

td {
    width: 200px;
    height: 100px;
    text-align: center;
    line-height: 100px;
    font-size: 25px;
    border: 1px solid #fff;
}

table tr:nth-child(n+1) {
    background-color: rgba(246, 246, 246, 0.911);
}

table tr:nth-child(n+1) :last-child {
    background-color: rgb(228, 228, 228);
}

table tr:first-child {
    background-color: rgb(228, 228, 228);
}